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Federer is bidding to win his sixth title in Halle, a grass-court warm-up for Wimbledon

Andy Murray advances to Queen's final and will face defending champion Marin Cilic

Roger Federer had to work a little harder than he did Friday but the 17-time grand slam champion rallied past Tommy Haas at a Wimbledon warm-up in Germany to move one match away from winning his first title of the season.

In a battle of players over 30 -- Federer turns 32 in August and Haas is 35 -- the Swiss came through 3-6 6-3 6-4 in Halle. Mikhail Youzhny awaits in the final.

In the quarterfinals, Federer dispatched Haas' fellow German, Mischa Zverev, 6-0 6-0 in under 40 minutes to register only the second 'double bagel' of his glittering career.

"Honestly I'm playing pretty good for a long period of time," he said. "Clearly I'm very happy to play the final tomorrow. It is a big final for me. After this we'll focus on Wimbledon."

If Federer defeats Russia's Youzhny on Sunday -- Youzhny, too, is a veteran who turns 31 this month -- he would capture his sixth title in Halle but first since 2008.

Their head-to-head record suggests Federer should be the heavy favorite. He leads Youzhny, a 6-3 6-2 winner over second-seed Richard Gasquet on Saturday, 14-0.

Murray in London final

Center Court in Halle benefits from a roof but it's not the case at the Queen's Club in London, and the other men's Wimbledon warm-up this week has been affected by adverse weather.

More rain Saturday led to both semifinals being delayed, with organizers eventually shifting one to an outer court.

Eventually Murray, like Federer, came from a set down to progress to the final. He beat fourth-seed Tsonga 4-6 6-3 6-2 in his first event since returning from a back injury, saving two break points at 3-3 in the second set.

"I managed to turn that match around against a top player," Murray told the BBC. "He's one of the best grass-court players in the world."